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o If the page returned by vm_page_grab(VM_ALLOC_ZERO) isn't prezeroed,

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zero it.

Reviewed by:	dfr, peter
This commit is contained in:
Alan Cox 2002-07-21 04:07:26 +00:00
parent 5878eb3fca
commit 5ec699cdac
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=100422
4 changed files with 8 additions and 0 deletions
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2
sys/dev/agp/agp.c
View file

@ -422,6 +422,8 @@ agp_generic_bind_memory(device_t dev, struct agp_memory *mem,
*/
m = vm_page_grab(mem->am_obj, OFF_TO_IDX(i),
VM_ALLOC_ZERO | VM_ALLOC_RETRY);
if ((m->flags & PG_ZERO) == 0)
vm_page_zero_fill(m);
AGP_DPF("found page pa=%#x\n", VM_PAGE_TO_PHYS(m));
vm_page_lock_queues();
vm_page_wire(m);

2
sys/dev/agp/agp_i810.c
View file

@ -371,6 +371,8 @@ agp_i810_alloc_memory(device_t dev, int type, vm_size_t size)
*/
vm_page_t m;
m = vm_page_grab(mem->am_obj, 0, VM_ALLOC_ZERO|VM_ALLOC_RETRY);
if ((m->flags & PG_ZERO) == 0)
vm_page_zero_fill(m);
vm_page_lock_queues();
vm_page_wire(m);
mem->am_physical = VM_PAGE_TO_PHYS(m);

2
sys/pci/agp.c
View file

@ -422,6 +422,8 @@ agp_generic_bind_memory(device_t dev, struct agp_memory *mem,
*/
m = vm_page_grab(mem->am_obj, OFF_TO_IDX(i),
VM_ALLOC_ZERO | VM_ALLOC_RETRY);
if ((m->flags & PG_ZERO) == 0)
vm_page_zero_fill(m);
AGP_DPF("found page pa=%#x\n", VM_PAGE_TO_PHYS(m));
vm_page_lock_queues();
vm_page_wire(m);

2
sys/pci/agp_i810.c
View file

@ -371,6 +371,8 @@ agp_i810_alloc_memory(device_t dev, int type, vm_size_t size)
*/
vm_page_t m;
m = vm_page_grab(mem->am_obj, 0, VM_ALLOC_ZERO|VM_ALLOC_RETRY);
if ((m->flags & PG_ZERO) == 0)
vm_page_zero_fill(m);
vm_page_lock_queues();
vm_page_wire(m);
mem->am_physical = VM_PAGE_TO_PHYS(m);